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《Acta Scientiae Circumstantiae》 2002-04
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Degradation mechanism of organic pollutant in water by plasma

ZHU Chengzhu, DONG Wenbo, PAN Xunxi, ZHANG Renxi, HOU Huiqi+* (Institute of Environmental Science. Fudan University, Shanghai 200433, )  
The degradation mechanism of methyl violet in water with O-2 was studied using plasma method.The degradation efficiency of aqueous methyl violet showed linearity relation with both plasma voltage and discharge time, while it had exponential relation with concentration of aqueous methyl violet. The pH of aqueous methyl violet declined along treating time increasing. After discharge for 3*!s, the degradation efficiency of 100*!mg/L of aqueous methyl violet reached up to 95%, COD reduced 50%. At the point of the plasma, the degradation of methyl violet in water with O-2 is a collective action of oxygen atom, electron and radical.
【CateGory Index】: X131.2
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